On the geometrization of electrodynamics

Breakthrough propulsion physics workshop preliminary results

“…It should be noted that all of these theories are too new to have either been confirmed or discounted, but their potential utility warrants consideration. This includes negative mass propulsion (Bondi 1957), theories that suggest that inertia and gravity are affected by vacuum fluctuations (Puthoff 1989 andHalsch 1994), and numerous other theories about the coupling between matter, electromagnetism, and spacetime (Dinowitz 1996, Froning 1997, Ringermacher 1994, Vargas 1991, Woodward, 1992, and Yilmaz 1992. Another recent development, which has yet to be credibly confirmed or discounted, is where anomalous weight changes are observed over spinning superconductors (Podkletnov 1992 Several experiments were suggested to test the theories linking inertia to vacuum fluctuations, including experiments described in existing literature (Forward 1996).…”

‘…But I still can׳t get rid of a sense of artificiality’: The Reichenbach–Einstein debate on the geometrization of the electromagnetic field

“…Thus, I am not sure why Reichenbach believed himself to have gotten rid of the velocity-dependent connection with this trick. On velocity-dependent connections, see Vargas, 1991. lines. Since there are two 'norms' that one would naturally choose, the e /m of the positive and that of the negative electron, there would only be two 'natural' geometries.…”